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EnglishWhat Is a Conveyor (输送机) and How Do You Choose the Right Type for Powder Handling?
Updated
A conveyor (输送机) in a powder processing line is the equipment that moves material continuously between process steps—typically from a pulverizer (粉碎机) to a sifter (筛粉机), from a sifter to a mixer (混合机), or from a granulator (制粒机) to a dryer (干燥机). The right type depends mainly on your material form (powder, granule, fragile, dusty), the conveying distance and lift height, and how well it interfaces with the upstream and downstream machines. For most powder lines, the three common choices are belt conveyors, screw conveyors, and vacuum loaders, each suited to different conditions rather than being interchangeable.
The Role of a Conveyor in a Powder Line
In a typical powder processing flow—crushing → screening → mixing → granulating → drying—material must move between machines without contamination, spillage, or excessive dust. The conveyor is the link that makes this continuous. According to the manufacturer's product description, conveyors "借助输送带、链条等部件实现物料在工序或场地间的连续传输" (use belts, chains, and similar components to achieve continuous transfer of material between process steps or sites).
How you connect the conveyor to upstream and downstream equipment affects both throughput and housekeeping:
- Discharge point alignment: The conveyor outlet should feed directly into the next machine's inlet to avoid manual transfer and dust release.
- Height and layout: If the next machine sits higher, you need either a lift-capable conveyor or a vacuum loader rather than a flat belt.
- Sealing: For dusty or fine powders, enclosed conveying reduces airborne dust and material loss.
Common Conveyor Types and Where They Fit
The site lists three conveyor-related products: SSJ皮带输送机 (SSJ belt conveyor), LSJ螺杆输送机 (LSJ screw conveyor), and ZKS系列真空加料机 (ZKS series vacuum loader). These cover most powder-handling needs, but they behave very differently.
| Type | Best for | Material form | Dust control | Lift capability |
|---|---|---|---|---|
| Belt conveyor (SSJ) | Horizontal or gently inclined transfer over distance | Granules, lumps, less fragile solids | Lower (open unless enclosed) | Limited incline |
| Screw conveyor (LSJ) | Short, enclosed transfer; feeding into machines | Powders, small granules | Good (enclosed tube) | Moderate incline |
| Vacuum loader (ZKS) | Point-to-point feeding, especially into mixers/sifters | Fine powders, dusty materials | Very good (closed system) | Vertical lift possible |
Belt Conveyor (SSJ皮带输送机)
Suited to moving bulk granules or larger particles horizontally or at a slight incline. It is a good fit when material is not highly dusty and does not need to be fully enclosed. Because it is relatively open, it is less ideal for fine, airborne powders.
Screw Conveyor (LSJ螺杆输送机)
A good choice for enclosed, short-distance transfer of powders and small granules, and for feeding material directly into a machine inlet. The enclosed tube helps contain dust. It works well when you need a controlled, steady feed rate rather than long-distance transport.
Vacuum Loader (ZKS系列真空加料机)
Best when you need to lift material vertically or move fine, dusty powders point-to-point with minimal dust escape. Because it is a closed pneumatic system, it suits feeding mixers, sifters, and similar equipment where cleanliness and dust control matter.
How to Choose: Match the Conveyor to Your Conditions
Work through these factors in order; the answer usually narrows to one type quickly.
- Material form and fragility. Granules and lumps tolerate a belt conveyor; fine powders favor screw or vacuum. Fragile granules may break down in a screw conveyor, so a belt or gentle vacuum transfer is safer.
- Dustiness. Highly dusty powders point to enclosed options—screw conveyor or vacuum loader.
- Distance and direction. Long horizontal runs suit belts; short enclosed feeds suit screws; vertical lifts suit vacuum loaders.
- Interface with the next machine. If the downstream machine (mixer, sifter, granulator) needs a steady, enclosed feed, a screw conveyor or vacuum loader integrates more cleanly.
- Throughput and layout. The manufacturer notes that capacity and particle-size ranges vary with the material, and recommends contacting their engineers for a tailored configuration—so final sizing should be confirmed against your specific material and required output.
Common Problems and Where to Look
| Symptom | Likely cause | Direction to check |
|---|---|---|
| Material blockage (堵料) | Feed rate too high, incline too steep for the type, or wet/sticky powder | Reduce feed, adjust angle, or switch to a type suited to sticky material |
| Leakage (漏料) | Worn belt, loose connections, or open design on a dusty powder | Tighten/repair, or move to an enclosed conveyor |
| Dust emission (扬尘) | Open conveying of fine powder | Enclose the transfer or use a vacuum loader |
| Insufficient throughput (输送量不足) | Conveyor undersized for the material's bulk density or the required rate | Re-check capacity against actual material; consult the supplier for sizing |
When to Ask the Manufacturer
Because capacity and particle-size range depend on the specific material, and because the site explicitly states that configurations are tailored ("根据物料的不同,产能和粒度范围也会有所不同。请联系我们的工程师,为您量身定制更适合您的设备"), the practical step before ordering is to provide your material type, bulk density, required throughput, transfer distance, and lift height. That information lets the supplier recommend among the SSJ belt, LSJ screw, and ZKS vacuum options—or a combination—rather than guessing from the product name alone.